Description
The Matador Arms MAT9-K Glock Mag Pistol pairs Matador’s roller-delayed 9mm action with a lower that accepts Glock double-stack magazines, the most common pistol magazines in the country. It is built in the USA, finished in black over black, and fitted with an A3 Tactical folding brace.
Matador Arms MAT9-K Glock Mag Pistol Overview
Glock-magazine compatibility is the main reason buyers choose this version. If you carry a Glock 17, 19 or 34, the same magazines feed this pistol, from 15- and 17-rounders up to 33-round sticks and drums where legal. Inside, the MAT9-K uses rollers to delay the bolt rather than relying on bolt mass alone, so the moving parts are lighter and recoil impulse is softer than a typical blowback PCC. The bufferless layout has no receiver extension, which is what allows the brace to fold flat alongside the gun.
Built Around Glock Magazines
Shared magazines simplify a home-defense or range kit: one magazine type for your sidearm and your PCC. The lower includes last-round bolt hold open, a feature some Glock-pattern PCCs lack, so the action locks back when the magazine runs dry. Extended and drum magazines can stress magazine catches over time, so inspect the catch periodically and keep magazines clean.
Construction
Both receivers are Type III hard anodized aluminum. Controls are ambidextrous, the non-reciprocating charging handle can be moved to either side, and the trigger is an upgraded mil-spec unit compatible with many AR-pattern upgrades. A top Picatinny rail runs the length of the upper for an optic, and the handguard offers M-LOK slots for a light. The gun ships without sights.
The Brace
The A3 Tactical folding brace rides a 7.75-inch offset aluminum shaft and folds to the side for storage. The 2023 ATF rule that reclassified many braced pistols was vacated by a federal court in 2024, but brace rules have changed more than once, so stay current on federal and state guidance.
Barrel and Suppressor Use
The 5.5-inch barrel is nitrided for corrosion and wear resistance and threaded at the muzzle. Roller-delayed guns are favorite suppressor hosts because they keep more gas moving forward than blowback designs. Remember that a suppressor is an NFA item requiring an approved ATF Form 4 and state legality, and confirm thread pitch with Matador before ordering a device.
What to Know Before Buying
Matador is a small, veteran-owned shop with a lifetime warranty, but aftermarket support is thinner than for big-brand PCCs and resale value is less predictable. Test your defensive ammunition for reliable feeding, especially with flat-nosed bullets, and expect a short break-in period. Confirm whether a magazine is included with your configuration.
State Laws and Ownership
Pennsylvania buyers complete a PICS check at the receiving dealer, and the state does not cap magazine capacity. Several states restrict pistols with threaded barrels, braces, or magazines that attach outside the grip, and some ban standard-capacity magazines outright. Check your state and local rules before ordering.
Specifications
- Manufacturer: Matador Arms, San Antonio, Texas
- Model: MAT9-K, Glock magazine lower, black/black with brace
- UPC: 850045441456
- Caliber: 9mm Luger
- Action: Roller-delayed semi-auto, bufferless
- Barrel: 5.5-inch nitrided, threaded muzzle (some distributors list 5 inches)
- Receivers: Type III hard anodized aluminum, black upper and lower
- Controls: Ambidextrous, last-round bolt hold open, non-reciprocating reversible charging handle
- Rails: Top Picatinny, rear 1913 rail, M-LOK handguard slots
- Brace: A3 Tactical folding brace, 7.75-in. offset shaft
- Sights: None included
- Made in the USA; lifetime warranty
Before You Buy
Federal law requires handgun buyers to be at least 21 years old to purchase from a licensed dealer and to pass a background check. This pistol ships to your local FFL, where you complete ATF Form 4473. Suppressors and SBR conversions are regulated separately under the NFA.
Who It Is For
The Matador Arms MAT9-K Glock Mag Pistol is a great fit for Glock owners who want a pistol-caliber companion that shares their magazines, shooters who want the softer recoil of a roller-delayed action, and suppressor owners looking for a compact host.
Buy the Matador Arms MAT9-K Glock Mag Pistol at MAG5 Firearms
MAG5 Firearms is a family-owned FFL in Collegeville, Pennsylvania. Order the Matador Arms MAT9-K Glock Mag Pistol online and ship it to your local FFL dealer, or browse our full selection of firearms for more pistols. For factory details, visit Matador Arms.
Reviews
There are no reviews yet.